Match the following pairs and choose the appropriate option : Rocks…
2024
Match the following pairs and choose the appropriate option :
Rocks Origin/formation
(a) Igneous Rocks (i) Change under great heat and pressure
(b) Sedimentary Rocks (ii) Molten Magma
(c) Metamorphic Rocks (iii) Deposition by wind and water
Choose the correct option :
- A.
(a)-(i), (b)-(ii), (c)-(iii)
- B.
(a)-(ii), (b)-(iii), (c)-(i)
- C.
(a)-(iii), (b)-(i), (c)-(ii)
- D.
(a)-(i), (b)-(iii), (c)-(ii)
Show answer & explanation
Correct answer: B
Rocks are classified into three major types based on how they form: igneous rocks form when molten magma or lava cools and solidifies; sedimentary rocks form when sediments carried by agents such as wind and water are deposited and then compacted and cemented over time; metamorphic rocks form when an existing rock is altered by great heat and pressure without completely melting.
Rock type | Formation process (as listed in the question) |
|---|---|
(a) Igneous Rocks | (ii) Molten Magma — cooling and solidification |
(b) Sedimentary Rocks | (iii) Deposition by wind and water |
(c) Metamorphic Rocks | (i) Change under great heat and pressure |
Each of the three formation processes — melting-and-cooling, external deposition, and heat-and-pressure alteration — is unique to exactly one rock type, so the pairing is unambiguous. This confirms the combination (a)-(ii), (b)-(iii), (c)-(i) as the correct match.